The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2009
Filed:
Mar. 31, 2004
Naoki Naruse, Yokohama, JP;
Yuichi Ichikawa, Yokosuka, JP;
Tatsuro Oi, Kawasaki, JP;
Nobuyuki Watanabe, Sayama, JP;
Yasunori Hattori, Fujisawa, JP;
Masato Takeshita, Mitaka, JP;
Masakazu Nishida, Yokosuka, JP;
Mao Asai, Yokosuka, JP;
Masayuki Tsuda, Tokyo, JP;
Atsuki Tomioka, Yokohama, JP;
Kazuhiro Yamada, Yokohama, JP;
Satoshi Washio, Tokyo, JP;
Dai Kamiya, Tokyo, JP;
Naoki Yamane, Tokyo, JP;
Keiichi Murakami, Ichikawa, JP;
Naoki Naruse, Yokohama, JP;
Yuichi Ichikawa, Yokosuka, JP;
Tatsuro Oi, Kawasaki, JP;
Nobuyuki Watanabe, Sayama, JP;
Yasunori Hattori, Fujisawa, JP;
Masato Takeshita, Mitaka, JP;
Masakazu Nishida, Yokosuka, JP;
Mao Asai, Yokosuka, JP;
Masayuki Tsuda, Tokyo, JP;
Atsuki Tomioka, Yokohama, JP;
Kazuhiro Yamada, Yokohama, JP;
Satoshi Washio, Tokyo, JP;
Dai Kamiya, Tokyo, JP;
Naoki Yamane, Tokyo, JP;
Keiichi Murakami, Ichikawa, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
The present invention provides a means for determining authenticity of a combination of files which are downloaded to a mobile station, and which are related to one another. To achieve the stated object, in a system according to the present invention, mobile station, which is capable of running a Java-APP, receives an ADF from CP server device. Then mobile stationreceives a SDF from trusted server device, which is identified by data contained in the ADF. Mobile stationcalculates a hash value of certificate data contained in the ADF, and verifies whether the calculated hash value of the certificate data and a hash value of the certificate data which is contained in the SDF are identical to each other. Next, mobile stationreceives a JAR file from CP server device. Mobile stationcalculates a hash value of the JAR file, and verifies whether the calculated hash value of the JAR file and a hash value of the JAR file contained in the ADF are identical to each other.